12x 1070 consumption at the wall (2900w??)

[miningjob]

Hi all, my first post,

Been trying to crack my head over this and not sure if Im doing this right.. Im currently running a 12x 1070 with 2x 1600w gold PSU setup on ubuntu, mining between ETH and ZEC, i am currently drawing almost 2900w at the wall..

I have set my power limit for each card to be at 125w, modest offset of +25/+600 and on start up (no mining), the rig idles at 265w with all 12 card fans spinning

However, the the moment the miner is started up it jumps all the way to 28XXw and holds there

ETH about 380mh/s
ZEC about 5300Sol/s

Im not sure if my calculation is correct but shouldn't it be

12 X 125w = 1500W
Mobo + others = 300w give or take

Total 1700w
Gold PSU efficiency = 80% or so (120% power needed) = 2160W

But my killawatt is showing almost 2900W constant, 740w difference .. I could drastically reduce power consumption by setting the power limit to something like 95w for each card but of course my hash rates take a dive so definitely the power limit is doing something (but 95w is more like 125w and 125w seems to be more like 195w)

Question, is running a 12x 1070 supposed to consume that much power or is something wrong with my setup?

Thanks!

[Metroid]

Yeah, there must be something wrong, I assume all gpu''s are with same settings right? Maybe some of them have not applied the settings at all, some  gpus do not apply settings until it can be applied, nvidia is different than amd in that sense. I would check each one of them with HWiNFO64. If all are okay then maybe your psu is burning heat without using it, maybe one of your psu is done for, the psu's you are using are gold, 90% efficiency even on 127v outlet for that kind load.

2900w divided by 12 = 241w, this is not right if you set 125w on each. Just to make sure do this on all gpu's command line as administrator --> nvidia-smi -i 0 -pl 125

[miningjob]

Yeah, there must be something wrong, I assume all gpu''s are with same settings right? Maybe some of them have not applied the settings at all, some  gpus do not apply settings until it can be applied, nvidia is different than amd in that sense. I would check each one of them with HWiNFO64. If all are okay then maybe your psu is burning heat without using it, maybe one of your psu is done for, the psu's you are using are gold, 90% efficiency even on 127v outlet for that kind load.

2900w divided by 12 = 241w, this is not right if you set 125w on each. Just to make sure do this on all gpu's command line as administrator --> nvidia-smi -i 0 -pl 125

Hi Metroid, yeah all are set by a script on startup to pl 125 and pm 1, i opened nvidia-smi and it does indeed show all at 125w, when mining its like 125/125w or 124/125w, fans are set at 75%

Could be PSU also.. but i've got them for less then a month, shouldn't be whacked so fast..

I'm on a 220v, if it helps

[Metroid]

Well try to work with just one psu and see how it goes, exchange them, for example, 6 with just one psu and then change to the other psu. Also have you checked each card with HWiNFO64? Are all the cards draining/using the same wattage in HWiNFO64?

I worked on a computer for a friend and he has 2 gtx 1070 and each of them on HWiNFO64 was using 116w and at wall power was 365w. So basically system power at 133w and each card using 116w. But since that was also gold psu then it means, system power is much less. The reality is 10% less, which means 330w.

[shibob]

Yeah, there must be something wrong, I assume all gpu''s are with same settings right? Maybe some of them have not applied the settings at all, some  gpus do not apply settings until it can be applied, nvidia is different than amd in that sense. I would check each one of them with HWiNFO64. If all are okay then maybe your psu is burning heat without using it, maybe one of your psu is done for, the psu's you are using are gold, 90% efficiency even on 127v outlet for that kind load.

2900w divided by 12 = 241w, this is not right if you set 125w on each. Just to make sure do this on all gpu's command line as administrator --> nvidia-smi -i 0 -pl 125

Hi Metroid, yeah all are set by a script on startup to pl 125 and pm 1, i opened nvidia-smi and it does indeed show all at 125w, when mining its like 125/125w or 124/125w, fans are set at 75%

Could be PSU also.. but i've got them for less then a month, shouldn't be whacked so fast..

I'm on a 220v, if it helps

I'm also mining with 220V, I set power limit at 80%, each card 1070 draws about 125-130W constantly, my rig includes 6 cards 1070, PSU 1300W.
Ubuntu OS should be good for mining, so I think your kill a watt might get problem, you may try to test with running only 6 cards with 1PSU, then 2PSU to check power.

[bathrobehero]

Even factory overclocked 1070s can only pull as much as 200 watts with max PL (180 watts on stock) and no electricity just disappears (it comes with heat) so your wattmeter is likely faulty.

[Undefined31415]

What are the specifications of the killawatt meter, and how much do you trust it to provide an accurate measurement?

I would definitely not trust the power use reported by nvidia-smi.

[miningjob]

Hi all,

I just swapped with another killawatt, same hash rate and settings, now it shows 1600W...

Wtf?

So confirm it is the killawatt going bonkers?

[bathrobehero]

Hi all,

I just swapped with another killawatt, same hash rate and settings, now it shows 1600W...

Wtf?

So confirm it is the killawatt going bonkers?

Had to be. I mean it's basic math, 12x125=1500 plus 70-100W for the whole system plus PSU efficiency so you'd realistically should be at around 1650-1750W.